@article { ISI:000228699400021,
	title = {Benzylation of benzene and other aromatics by benzyl chloride over mesoporous AlSBA-15 catalysts},
	journal = {Microporous and Mesoporous Materials},
	volume = {80},
	number = {1-3},
	year = {2005},
	month = {MAY},
	pages = {195-203},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Aluminum-containing mesoporous molecular sieves AISBA-15 with different n(Si)/n(Al), ratios and AIMCM-41 have been synthesized hydrothermally and characterized in detail by physicochemical methods, viz. XRD, N(2) adsorption and (27)Al NMR spectroscopy. The low angle XRD and N2 adsorption measurements reveal that the structural order of SBA-15 was retained after the incorporation of Al. The increase of the unit cell parameter with increasing aluminum content and (27)Al MAS NMR spectroscopy confirm the incorporation of aluminum in the framework. Benzylation of benzene and substituted benzenes reaction employing benzyl chloride as the alkylating agent over AISBA-15 and AIMCM-41 have been investigated. The influence of various reaction parameters such as reaction temperature, reactant feed ratio and catalyst amount affecting the activity and selectivity of AISBA-15, have been studied. Among the mesoporous catalysts studied, AISBA-15(45), where the number in parentheses indicates the molar nsilnA, ratio, shows both high conversion and high selectivity for the benzylation of benzene. The activity of this catalyst for the benzylation of different aromatic compounds is in the following order: benzene \&gt; toluene \&gt; p-xylene \&gt; mesitylene \&gt; anisole. Kinetics of the benzene benzylation over different catalysts have also been investigated. (c) 2005 Elsevier Inc. All rights reserved.</p>},
	keywords = {Alkylation, AlSBA-15, Benzylation, SBA-15},
	issn = {1387-1811},
	doi = {10.1016/j.micromeso.2004.12.012},
	author = {Vinu, A. and Sawant, D. P. and Ariga, Katsuhiko and Hartmann, Martin and Halligudi, Shivappa B.}
}
@article { ISI:000227853700025,
	title = {Highly active and selective AlSBA-15 catalysts for the vapor phase tert-butylation of phenol},
	journal = {Applied Catalysis A-General},
	volume = {281},
	number = {1-2},
	year = {2005},
	month = {MAR},
	pages = {207-213},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Hexagonally ordered mesoporous AISBA-15 catalysts having n(Si)/(nA]) ratios from 7 to 215 have been synthesized hydrothermally using a cheap non-ionic block copolymer as the structure-directing agent. The obtained materials were analyzed by XRD and nitrogen adsorption to determine the structural order and the textural properties. It has been observed by Al-27 MAS NMR spectroscopy that aluminum atoms are exclusively in tetrahedral coordination for all samples except AISBA-15(7), where octahedral aluminum has been detected to some extent. Temperature-programmed desorption of pyridine showed that AISBA-15(45) has a higher number of strong acid sites as compared to other mesoporous materials such as FeMCM-41, AIMCM-41 and FcAlMCM-41. The catalyst AlSBA-15(45)showed superior performance in the acid-catalyzed tertiary butylation of phenol employing tert-butanol as the alkylation agent. A high phenol conversion of 86.3\% is observed for this catalyst at a reaction temperature of 150 degrees C. Over AISBA-15(45), the 4-TBP yield amounts to 40.5\% and the 2,4-DTBP yield corresponds to 37.9\%. (c) 2004 Elsevier B.V. All rights reserved.</p>},
	keywords = {Acidity, AlSBA-15, aluminum incorporation, butylation of phenol, SBA-15},
	issn = {0926-860X},
	doi = {10.1016/j.apcata.2004.11.031},
	author = {Vinu, A. and Devassy, Biju M. and Halligudi, Shivaraj B. and Bohlmann, W. and Hartmann, Martin}
}
